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After four miles, it's a little shocking to me. And I'm into shooting sports.
by mod 4y ago
After four miles, it's a little shocking to me.
And I'm into shooting sports.
- Alupis 4y ago> ...of a 422-grain copper bullet... > The shot was made with a custom-built rifle chambered for the .416 Barrett cartridge That's a huge bullet that was specifically designed for low-supersonic drag and extreme long range. It has a huge amount of energy at the muzzle... (8,767.4 ft-lb or 11,887 J according to wikipedia[1]) so ~600fps down range, even at 4.4 miles, is not that surprising. The only surprising feat here is they managed to actually hit a target... which is quite incredible. [1] https://en.wikipedia.org/wiki/.416_Barrett https://en.wikipedia.org/wiki/.416_Barrett
- NaturalPhallacy 4y agoFor the non-gun people in here that is an absolute chonker of a bullet. The .556 (very common AR round) is 112. 9mm common in handguns is around 115. 422 grain = 27.35 grams / 0.9646 ounces.
- bjt2n3904 4y ago5.56 is 45 - 75 gn, typically 55 or 62.
- OJFord 4y ago> .556 Do you mean 5.56mm, the NATO standard small arms round iirc? i.e. as an imperial measurement it'd be about the same as a .22, not .556.
- mburee 4y ago0.556 cm ;)
- OJFord 4y ago... touché!
- NaturalPhallacy 4y agoYeah. lol, I was thinking about how it's said "five five six" and paid no attention to what I wrote.
- mod 4y ago> BC (Ballistic Coefficient) ≈ 1.103 Wow.
- mrb 4y agoDoing the exact math, a 422-grain bullet shot at 3300 feet/sec is 13,833 joules of kinetic energy (.5 * mass * speed*2 = energy) Right before hitting the target it slowed down to 600 feet/sec, meaning it lost 97% of its kinetic energy during the flight.